In an experiment a sphere of aluminium of mass 0.20 kg is heated upto $150^{\circ}C$. Immediately, it is put into water of volume 150 cc at $27^{\circ}C$ kept in a calorimeter of water equivalent to 0.025 kg. Final temperature of the system is $40^{\circ}C$. The specific heat of aluminium is :
(take 4.2 Joule=1 calorie)
- $378 \, J/kg - {^{\circ}C}$
- $315 \, J/kg - {^{\circ}C}$
- $476 \, J/kg - {^{\circ}C}$
- $434 \, J/kg - {^{\circ}C}$
The Correct Option is D
Solution and Explanation
$\Rightarrow m _{1} C _{1} \Delta T _{1}=\left( m _{2}+ w \right) C _{2} \Delta T _{2}$
$\Rightarrow 0 . 2 0 \times C _{1} \times( 1 5 0 - 4 0 )=\left( 1 5 0 \times 1 0 ^{-3}\right)$
$C _{1}= 4 3 4 ~ y k g ^{-1} k ^{-1}$
Top Questions on thermal properties of matter
- The S.I. unit of compressibility is:
- CUET (PG) - 2025
- Physics
- thermal properties of matter
- The elastic energy density of a stretched wire is given by:
- CUET (PG) - 2025
- Material Science and Technology
- thermal properties of matter
- Which of the following option is correct related to the application of elastic hysteresis?
- CUET (PG) - 2025
- Material Science and Technology
- thermal properties of matter
- The breaking stress of a wire depends on:
- CUET (PG) - 2025
- Material Science and Technology
- thermal properties of matter
- Under the elastic limit, Poisson's ratio is:
- CUET (PG) - 2025
- Material Science and Technology
- thermal properties of matter
Questions Asked in JEE Main exam
Choose the correct set of reagents for the following conversion:
- JEE Main - 2025
- Organic Chemistry
- JEE Main - 2025
- Organic Chemistry
- In a group of 3 girls and 4 boys, there are two boys \( B_1 \) and \( B_2 \). The number of ways in which these girls and boys can stand in a queue such that all the girls stand together, all the boys stand together, but \( B_1 \) and \( B_2 \) are not adjacent to each other, is:
- JEE Main - 2025
- Permutations
A bead of mass \( m \) slides without friction on the wall of a vertical circular hoop of radius \( R \) as shown in figure. The bead moves under the combined action of gravity and a massless spring \( k \) attached to the bottom of the hoop. The equilibrium length of the spring is \( R \). If the bead is released from the top of the hoop with (negligible) zero initial speed, the velocity of the bead, when the length of spring becomes \( R \), would be (spring constant is \( k \), \( g \) is acceleration due to gravity):
- JEE Main - 2025
- Fluid Mechanics
- Let \( f: \mathbb{R} \to \mathbb{R} \) be a function defined by \( f(x) = \left( 2 + 3a \right)x^2 + \left( \frac{a+2}{a-1} \right)x + b, a \neq 1 \). If \[ f(x + y) = f(x) + f(y) + 1 - \frac{2}{7}xy, \] then the value of \( 28 \sum_{i=1}^5 f(i) \) is:
- JEE Main - 2025
- Functions
Concepts Used:
Thermal Properties of Matter
Anything that has mass or occupies space in the universe is commonly known as matter. There are five properties of matters namely chemical, mechanical, thermal, dimensional, and physical properties.
Read More: Thermal Properties of Matter
Heat Capacity:
The quantity of heat needed to change the temperature of the matter by 1° is known as the heat capacity of a material. The temperature is indicated in kelvin or Celsius and the amount of heat is shown in calories or joules. Specific heat capacity or molar heat capacity is used to calculate the heat capacity of the matter with the stated dimension.
Linear expansion is the situation when change takes place in one dimension or dimensional.
Thermal Expansion:
When heat is passed through the material, the change in the area, volume, and shape is recognized as the thermal expansion property of the material. The expansion of the railway tracks due to maximal heat which leads to accidents is an example of thermal expansion.
Thermal Conductivity:
This property is interconnected to the conductivity of heat. The amount of heat regulated by the material is directly proportional to the conductivity of the material. Not all objects have the capacity to conduct heat throughout their bodies. Insulators are such objects which do not have the property to conduct heat throughout their body.
Thermal Stress:
The stress due to thermal contraction or expansion of the body is known as thermal stress. The explosion of materials takes place due to thermal stress which is dangerous. The cracks on the truck tyres are caused by an outcome of thermal stress. Trucks at high speed generate heat which is caused by the friction of the truck tyres and the road surface.